Debugging (without a MacBook). Webgl 2. WebXR. Local storage not being completely gimped. I’m glad I don’t work in that industry anymore, Safari was the bane of my existence…
Good web standards are a threat to the app store (particularly anything to do with ARKit) - not like 3rd party browsers are likely to change that much with the majority of users sticking to defaults, but it might apply some pressure
I’m the opposite because I’ve had nothing but bad luck with docker. I should really spend more time with it but ugh